| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 222 |
20%
|
| 2 | 12 years old | 319 |
28.8%
|
| 3 | 13 years old | 351 |
31.7%
|
| 4 | 14 years old | 145 |
13.1%
|
| 5 | 15 years old | 53 |
4.8%
|
| 6 | 16 years old | 18 |
1.6%
|
| 7 | 17 years old or older | 0 |
0%
|
| Sysmiss | 49 |